- Date
- June 14, 2010, 11:45 local (17:45 UTC)
- Place
- Townsend, MT
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N8706KStinson 108-1
- Defining event
- Landing-landing roll: Loss of control on ground
- Weather
- Visual (VMC) · Day
- Status
- Completed · report October 21, 2010
- Report
- Approved by Office Director
- NTSB office
- Western Pacific Region
- Parties
- Federal Aviation Administration
- FAA report
- 20100614035009A
- Case key
- 76389
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot's failure to maintain directional control during the landing roll.
Findings · 2
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
Earlier in the day the pilot had discovered a minor engine oil leak in his airplane. The leak was fixed by a certificated airframe and power plant mechanic and the pilot then changed the airplane's oil. The pilot stated that the purpose of the flight was to make sure that the oil leak was repaired. He flew one circuit in the traffic pattern and landed normally. The pilot reported that he had full control of the airplane until he applied the brakes. According to the pilot, he "applied [the brakes] a little too soon," and the airplane veered to the right and exited the runway. In the grass on the side of the runway, the airplane momentarily nosed down and the propeller touched the ground. The airplane then settled back down normally with the engine stopped. The airplane sustained substantial damage to the left wing and main wing spar. The pilot reported no mechanical malfunction or failure with the airplane prior to the accident.
Factual narrative
Earlier in the day the pilot had discovered a minor engine oil leak in his airplane. The leak was fixed by a certificated airframe and power plant mechanic and the pilot then changed the airplane's oil. The pilot stated that the purpose of the flight was to make sure that the oil leak was repaired. He flew one circuit in the traffic pattern and landed normally. The pilot reported that he had full control of the airplane until he applied the brakes. According to the pilot, he "applied [the brakes] a little too soon," and the airplane veered to the right and exited the runway. In the grass on the side of the runway, the airplane momentarily nosed down and the propeller touched the ground. The airplane then settled back down normally with the engine stopped. The airplane sustained substantial damage to the left wing and main wing spar. The pilot reported no mechanical malfunction or failure with the airplane prior to the accident.
Aircraft
- Registration
- N8706K
- Reported as
- Stinson 108-1
- Category
- Airplane
- Serial number
- 108-1706
- Airframe hours
- 2,287
- Engine
- Lycoming O-435-C, 190 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Nelson Matthew A
- Registered owner
- Nelson Matthew A
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · February 4, 2010 · 15 hours before
- Departed
- 8U8 · Townsend, MT
- Destination
- 8U8 · Townsend, MT
- Airport
- 8U8 · Townsend, runway 34, 4,000 × 60 ft, asphalt
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 64
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine land, Single-engine sea
- Medical
- Class 3, With waivers/limitations
- Last flight review
- June 8, 2009
- Seat
- Left
- Flight hours
- 890 total · 391 in this make and model · 730 as pilot in command · 12 in the last 90 days · 2 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Variable at 4 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 66 °F, dew point 45 °F
- Altimeter
- 30.02 inHg
- Observed at
- HLN, 26 nm away
Docket · 1
The files NTSB released with the investigation on July 14, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 576 KB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N8706K · 1
Matched to the same aircraft by N-number and date.